Stove ob furnace



Feb.

C. E. C. EDEY STOVE OR FURNACE Filed Feb. 13, 1926 INVENTOR.

CHE/ELLIS 5.0. 505v ATTORNEY.

Patented Feb. 22,1927,

CHARLES E. o. EDEY, OF LOS ANGELES, CALIFORNIA.

PATENT omen;

s'rovn on F RNACE. I

Appli eation filed. February My invention relates to heating systems and appliances associatedtherewith, as well as the process for heating buildings, and more particularly tora furnace or stove in which coal or wood may alternatively be burned, the. air being heated by convection currents set up in said buildings by reason of the cooler air being conveyed to said stove or furnace, below the ash pit and to the rear of said stove or furnace; and thence ,to the stack, cooling the same, and thusconserving the heat so as to produce an exceedingly economical heating plant without the use of expensive piping.

It accordingly is an object of my invention to provide a novel form of heating appliance having a set of grate bars upon which a coal fire may be built, said bars being adapted to be lowered to form side walls to coact with a removableash pit sotliat' wood may be burned therein, a. draft regulating means being associated with said ash pit for startingjthe fire only, said means being closed after they fire has started,'and a set of passages associated with the bottom and rear of said appliance, said passages being used to set up convection currents in the building in which said appliance is positioned, the air entering said fines never reaching the fire.

It is also within the province of my invention to provide an additional set of openings in the rear wall associated with my novel. form of heating appliance for the. purpose of providing an'additional exit for V the products of combustion to the stack.

It is moreover within the province of my invention to provide a novel means of shaking the grate bars and also for lowering them so said grate bars will form side walls 7 to coact with the ash pit so wood may be burned in my stove or furnace.

lt is also an object of my invention to provide a novel form of apparatus which is simple in character, composed of a minimum number of parts, not easy to get out of order, economical and eiiicient in operation,

inexpensive to manufacture, and one which will thoroughly and reliably,

efi'ect'the objects intended. I

Further objects and advantages of my in-' vention will become more apparent as the description thereof proceeds.

Reference is had to the accompanying drawings, in which similar reference char- 13, 1926, Serial No. sense.

actors denote similar parts. In the drawmes, 1

a Fig, l is a front elevational view of my invention,

Fig. 2 is a longitudinal cross-sectional view on ,the line 2-2, Fig. 1, looking in the direction-of the arrows, V c

Fig. 3-is a transverse cross-sectional view on the line Fig. :2, also looking in the direction of the arrows, i

Fig. 4 is a fragmentary transverse crosssectional view, showing the grate bars col- Iapsed to form side walls to coact with the ash pit so thatwood may be burned therein, and Y Fig. 5 is a similar view showing modification. i I

V Describing my invention more in detail, I provide a casing lof any preferred conf guration and constructed of any suitable material, either cast metal or brick,'wl1ich casing is equipped with a top 24 associated therewith in any manner preferred, a stack 6 being associated with said top as desired, or with the casing 1 as preferred, for carry.- ing away the products of combustion.

Preferably, the casing 1 is partitioned off as indicated more particularly in Fig.2, to provide a rear wall 27 and a bottom wall 28, defining a rear passage 5 and a bottom passage 4. Of course it is to be understood that these passages may be arranged in a different manner.

sired, with walls of refractory material, is I positioned within the space defined by the walls 27 and 28, and a set-of grate bars 2 form the bottom of said fire pot, upon which a coal'fire may be built. It will be understood that desired grate bars of different construction and number may be provided instead of those shown. 7

The grate bars 2 are preferably pivoted on one sideto a bar or rodassociated in any manner desired with, the stove or furnace construction, which bars or rods are equipped externally of said stove or furnace with a grate shaking or lowering means 9, prefer- I ably in the shape of rectangular bars, tliough this is immaterial, an appliance or bail 8, preferably detachable from the bars 9 being provided as'a' handle tof shake said gratebarS. It will be any means, either H v in any manner with the bars 9 understood, however, that integral with, or associated may be sub stituted for the construction just described, and still remain within theprovince of my invention. i

If desired, the front of the furnace or stove may be equipped with one or more clean-out doors 7 of any character, said door being provided with a knob or handle 10 for manipulating the same, the fire chamber 26 being reached by means of said door.

The ash pit is positioned below the cham ber and the grrtc bars 2-. and said ash pit contains a removable receptacle 3 for receiving the ashes from the coal burned on said grate bars, and also '-iu'nctions as a. chamher or fire pot within which wood may be burned, in this instance the grate bars 2 takinc the position shown in Fig. l. thus formting the sides for said fire pot.

The receptacle or drawer 3 is equipped with inclined sides. as shown more particularly in Figs. 3 and 4, and has associated externally oi the casing 1 av front portion or plate 12, which plate forms a closure to! said drawer The plate 12 is equipped with a means for regulating the draft of the fire,

when started, and this means preferably eomprises a slidable plate 13 equipped with holes 1 adapted to be brought into a lio uinent with similar holes within the plate 12. There may be any number of such holes as they may be of any desired size and character.

Any desired iii-cans for bringing the sets of holes in alignment may be provided. in

the present instance headed pin 15 and slot 16 constructlon being provided, and a means i for operating the plate 13, as well as for pulling. out the drawer or receptacle 3, is provided, said means in the present instance taking the form of a knob 17. Of course. this construction may be changed, as in practice found dei-i' -able.

A means for controlling or closing; off the amount of air admitted to the convection passages i and 5 is provided below the plate 12. This means comprises preferably a door a 18, equipped with side i'lanp'cs 19, curved as shown, to provide a means whereby said door may be anchored in any desired position, said 1 door being preferably pivct d to the front of the casing 1 by any suitable construction 23. a conventional or olher means, in the shape of a chain or other operating means 20 \Vhcn it is desired to use coal. the grate bars 2 are positioned as shown in Figs. 2,

3 and 5, thebars or members 9 being used for this purpose. the drawer or receptacle 3 havingpreviously been removed. The draft openings 14 are opened, and the door 18 closed until the fire has well started, the products of combustion passing upwardly 1'4. wired, the house, as demonstrated in praclice. being heated within a very short time. The amount (it heat required is regulated by o 'iening and closing the door 18 the openings It being closed at all times except when the lireis started. a

In the torn) shown in Fig. 5. an additim'nll sct oi openings. ll o1 any shape and numbcr, is positioned within the rear wall of the furnace or stove to provide an f additional. means for permitting" the egress of the products oi combustion to the stack, in addition to those passing through the chamber 11 in the casino 1, the oratebars 2' and the fire pot 25 being precisely the same as those previously described.

Should it be desired to use wood, the drawer or receptacle 3 is withdrawn from the casing and the grate bars 2 lowered by means of the members 9 to the position shown in Fig. 4:, said bars forming side memhers to hold the wood in place, the fire being modified thrtnurhout a wide range. I there tore do not propose to be hunted to the exact details of constructionbut reserve the rip-ht in practice to malre any and all modifications thereof that lall within the scope oi the appended claims.

I claim as my invention:

1. In an apparatus of the class desicribcd, in conihimdzion. a casing. an altcrinitively wood and coal burning: chamber in said casinpg. means associated with said casing For rcpulatiugr the draft to said chamber \vhcn the lire is started therein. a. otaclr for said casino. and an external cool air circulating chamber in said cash 3; and posilionei'l below said first chamber, tor providingexternal convection air currents and for cooling the prodiwts of combustion passcd to sa d stack.

F3. in a heating; apmratus. in combination, a casing, a lire pot therein For burning coal, a movable set of grate barsassociated with said lire pot, and a removable ash pit positioned below said grate bars, said grate bars being;- adapted when lowered to coact with said aslrpit to form a chamber wherein wood may be burned.

In a heating apparatus, in combination, a casing, means associated with said casing whereby coal or wood may alternatively be burned therein, a combined draft regulating means and ash pit for said firs means, and a set of passages in said casing and posie tioned externally of said first means.

4. In a heating apparatus, a casing, lower and rear chamber defining walls in said casing, a fire pot in said casing, draft regulating means fo said fire pot, astack for said casing, said rear Wall being'so positioned in said casing as to define a space for receiving the products of combustion and conveying the same to said stack, said rear Wall having also one or more apertures to provide additional'means for conveying said products of movable ash pit, a set of grate 'bars'pivotally associated with said fire pot, and adapted to be lowered to form sides for said ash pit so that wood may beburned therein and lural means externall of said casin and associated with said grate bars, whereby said grate bars may be shaken or lowered, sub

stantially as described. I

In testimony whereof I have signed my name to this specification. 7

CHARLES E. C. EDEY. 

